Низкоуглеродистый низкожелезный коричневый корунд для пескоструйной обработки абразивов
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- Supplier: Gongyi City Beishankou Daqing Activated Carbon Factory
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Product Overview
Description
Product Description
Brown corundum physical properties:
Item | Indicators |
Colour | Dark brown (dark blue after calcination) |
Crystal shape | Triangular crystal system |
Hardness (Mohs) | ≥9.0 |
Melting point (°C) | 2250 |
Maximum use temperature (°C) | 1900 |
True density (g/cm3) | ≥3. 90 |
Coefficient of linear expansion (0-1600°C) | 7-9 |
The common name of brown corundum, also known as emery, has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient and corrosion resistance. The product has the characteristics of no explosion, no pulverization and no cracking in the application process.
Brown corundum is made of high-quality bauxite, anthracite, and iron, smelted in an arc at a high temperature of more than 2000 degrees, crushed and shaped by an automatic grinder, deferrized by magnetic separation, and sieved into various particle sizes. Its texture is dense and hard. High, the particles form a spherical shape, suitable for manufacturing ceramics, resin high-consolidation abrasives, as well as grinding, polishing, sand blasting, precision casting, etc., and can also be used to manufacture advanced refractory materials.
It has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient and corrosion resistance. It has been verified by dozens of refractory production enterprises that this product has the characteristics of non-explosive, non-pulverizing and non-cracking in the application process. In particular, its cost performance is much higher than that of traditional, which makes it an aggregate and filler of brown corundum refractories.
Brown corundum is made of high-quality bauxite, anthracite, and iron, smelted in an arc at a high temperature of more than 2000 degrees, crushed and shaped by an automatic grinder, deferrized by magnetic separation, and sieved into various particle sizes. Its texture is dense and hard. High, the particles form a spherical shape, suitable for manufacturing ceramics, resin high-consolidation abrasives, as well as grinding, polishing, sand blasting, precision casting, etc., and can also be used to manufacture advanced refractory materials.
It has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient and corrosion resistance. It has been verified by dozens of refractory production enterprises that this product has the characteristics of non-explosive, non-pulverizing and non-cracking in the application process. In particular, its cost performance is much higher than that of traditional, which makes it an aggregate and filler of brown corundum refractories.
Brown corundum particle size
The product particle size is produced according to international standards and national standards, and can be processed according to user requirements. The general particle size number is F4~F320, and its chemical composition varies according to the particle size. The outstanding feature is that the crystal size is small and impact resistant. Due to the processing and crushing by the self-grinding machine, the particles are mostly spherical particles. The ruishi brand brown corundum has high purity, dense texture, large packing density, strong self-sharpness, good toughness, and magnetic material. The characteristics of ultra-low content, the grinding tool made of it is sharp, low heat generation rate, high grinding ratio, and less adhesion during use; the sintered grinding tool has a dark blue color after firing and can not afford a mesh The characteristics of cracks and no rust spots are suitable for manufacturing ceramics, resin high-consolidation abrasives, as well as grinding and polishing
Specification
Physical And Chemical Indicators
application | specification | Main chemical composition% | Magnetic substance% | ||||||||
Al2O3 | Fe2O3 | SiO2 | TiO2 | ||||||||
Abrasives | F | 4#—80# | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | ≤0.05 | ||||
90#—150# | ≥94 | ≤0.03 | |||||||||
180#—240# | ≥93 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.02 | ||||||
p | 8#—80# | ≥95.0 | ≤0.2 | ≤1.2 | ≤3.0 | ≤0.05 | |||||
100#—150# | ≥94.0 | ≤0.03 | |||||||||
180#—220# | ≥93.0 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.02 | ||||||
w | 1#-63# | ≥92.5 | ≤0.5 | ≤1.8 | ≤4.0 | — | |||||
Refractory | Segmental sand | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | — | ||||
25-0mm 10-0mm 50-0mm 30-0mm | ≥95 | ≤0.3 | ≤1.5 | — | |||||||
Powder | 180#-0 200#-0 320#-0 | ≥93.5 | ≤0.5 | ≤1.5 | ≤3.5 | — | |||||
Note:
F is for solidified abrasives and sandblasting
P is for coated abrasives
W is micro powder, 320# i.e. W40
P is for coated abrasives
W is micro powder, 320# i.e. W40
The tilting furnace brown corundum Al2O3 content higher than fixed furnace and SiO2 content low than fixed furnace.
Comprasion:
The brown corundum made from tilting furnace have very small crystalll than fixed furnace,so it have high toughness and good shock resistance , it is well used in virtrified cutting off wheel and sandblasting application and not easy break .
Rate of production:
Tilting furnace : around 15ton one time,usually can smelt lump BFA around 45 ton per day.
Fixed Furnace:usually can smelt 42 ton BFA per day
The brown corundum made from tilting furnace have very small crystalll than fixed furnace,so it have high toughness and good shock resistance , it is well used in virtrified cutting off wheel and sandblasting application and not easy break .
Rate of production:
Tilting furnace : around 15ton one time,usually can smelt lump BFA around 45 ton per day.
Fixed Furnace:usually can smelt 42 ton BFA per day
Packing & Delivery
Raw material
Because of its high temperature resistance, corrosion resistance, high strength and other properties, it is used to cast steel sliding nozzles to smelt the lining (walls and tubes) of rare precious metals, special alloys, ceramics, iron-making blast furnaces; physical and chemical utensils, spark plugs, resistance Thermal antioxidant coating.
Production equipment
Due to the characteristics of high hardness, good wear resistance and high strength, it is used as a part of various reaction vessels and pipelines, chemical pumps in chemical systems; as mechanical parts and various molds, such as wire drawing molds, Squeeze the pencil core mold mouth, etc.; make cutters, mold abrasives, bulletproof materials, human joints, sealing mold rings, etc.
Application
Corundum thermal insulation materials, such as corundum light bricks, corundum hollow balls and fiber products, are widely used in furnace walls and roofs of various high-temperature furnaces, which are both high temperature resistant and thermally insulating.
Physical And Chemical Indicators
Physical And Chemical Indicators
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